Interesting article in "Astronomy" magazine, showing a sodium tail coming off Mercury. Apparently, a specific yellow filter would be needed to photograph/see it. I've never heard of this before.
On Tuesday, 12 October 2021 at 21:20:34 UTC-4, RichA wrote:
Interesting article in "Astronomy" magazine, showing a sodium tail coming off Mercury. Apparently, a specific yellow filter would be needed to photograph/see it. I've never heard of this before.
Ack! Sorry, I put Mars and it's Mercury.
Ack! Sorry, I put Mars and it's Mercury.
On Tuesday, October 12, 2021 at 7:36:43 PM UTC-6, RichA wrote:
Ack! Sorry, I put Mars and it's Mercury.Ah. Okay. Mercury I could believe; after all, it's very close to the Sun,
and thus very hot, so it could have unusual volatiles.
John Savard
Interesting article in "Astronomy" magazine, showing a sodium tail coming off Mercury. Apparently, a specific yellow filter would be needed to photograph/see it. I've never heard of this before.
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